Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR
5905-00-649-9072 A resistor in which a sliding or rolling contact moves over an exposed area of the resistive element to change the ohmic value of the output. The functional tolerance (linearity) of the output is equal to or less than plus or munus 1 percent on linear outputs. Specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. For items having manually positioned taps designed to be set and fixed prior to use, see RESISTOR, ADJUSTABLE, For items with step by step variation, see RHEOSTAT and RESISTOR, STEP BY STEP. For tandem-mounted items designed to function together as an attenuator (and rated accordingly), see ATTENUATOR, VARIABLE. Excludes RESISTOR (1), VARIABLE, NONWIRE WOUND, NONPRECISION; RESISTOR (1), VARIABLE, NONWIRE WOUND, PRECISION; and RESISTOR (1), VARIABLE, WIRE WOUND, NONPRECISION.
Alternate Parts: ST20S326, 7542026, 754-2026, 719299243, 719299-243, 719299243, 719299-243, 5905-00-649-9072, 00-649-9072, 5905006499072, 006499072
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-649-9072 | 37408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL SERVO MOUNTED
ROUND, SLOTTED
Cross Reference | NSN 5905-00-649-9072
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| ST20S326 | 99957 | BOWMAR/TIC INCSUB OF BOWMAR INSTRUMENT CORP |
| 754-2026 | 96795 | GOULD INSTRUMENT SYSTEMS INC |
| 719299-243 | 82577 | RAYTHEON COMPANYDBA RAYTHEON |
| 719299-243 | 05869 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5905-00-649-9072
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 2 |
| ELECTRICAL RESISTANCE PER SECTION | 20.000 KILOHMS ALL SECTIONS |
| RESISTANCE TOLERANCE PER SECTION IN PERCENT | -5.0 TO +5.0 ALL SECTIONS |
| FUNCTION CONFORMITY PER SECTION | ALL SECTIONS INDEPENDENT LINEARITY |
| FUNCTION CHARACTERISTIC PER SECTION | ALL SECTIONS LINEAR |
| FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.50 TO +0.50 ALL SECTIONS |
| LATERAL RUNOUT | 0.004 INCHES |
| SHAFT RADIAL PLAY | 0.001 INCHES |
| SHAFT BEARING TYPE | BALL |
| SHAFT END PLAY | 0.00500 INCHES |
| MAXIMUM STARTING TORQUE | 2.50 INCH-OUNCES |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 3.0 FREE AIR ALL SECTIONS |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 40.0 ALL SECTIONS |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 85.0 ALL SECTIONS |
| TAP LOCATION FROM CCW TERMINAL PER SECTION IN DEG OF EFFECTIVE ELECTRICAL ROTATION | 90.0 ALL SECTIONS |
| BODY STYLE | CYLINDRICAL SERVO MOUNTED |
| PILOT DIAMETER | 1.87400 INCHES MINIMUM AND 1.87500 INCHES MAXIMUM |
| PILOT LENGTH | 0.05700 INCHES MINIMUM AND 0.06700 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 1.984 INCHES NOMINAL |
| UNDERCUT WIDTH | 0.07300 INCHES MINIMUM AND 0.08300 INCHES MAXIMUM |
| BODY DIAMETER | 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM |
| BODY LENGTH | 2.143 INCHES MAXIMUM |
| MOUNTING LIP DIAMETER | 1.99500 INCHES MINIMUM AND 2.00500 INCHES MAXIMUM |
| MOUNTING LIP DEPTH | 0.08800 INCHES MINIMUM AND 0.09800 INCHES MAXIMUM |
| ACTUATOR TYPE | DOUBLE ENDED SHAFT |
| SHAFT STYLE | ROUND, SLOTTED |
| SHAFT DIAMETER | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SHAFT LENGTH | 0.360 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 360.0 NOMINAL |
| MOUNTING METHOD | CLAMP RING |
| TERMINAL TYPE AND QUANTITY | 10 SOLDER STUD |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |